From where do plants get energy to make their food? A. Sun B. Moon C. Earth. Please tell the answer.
The Correct Answer and Explanation is:
The correct answer is A. Sun.
Plants primarily get their energy to make food through a process called photosynthesis. This is a process that occurs in the chloroplasts of plant cells, where sunlight is captured and used to convert carbon dioxide from the air and water from the soil into glucose (a type of sugar) and oxygen. The glucose produced is then used as a source of energy for the plant to grow, develop, and perform other vital functions.
The process begins when chlorophyll, the green pigment in plant cells, absorbs sunlight. Sunlight is made up of light energy, which provides the necessary energy for photosynthesis to occur. This absorbed light energy excites electrons in the chlorophyll molecules, which helps convert light energy into chemical energy. Water (H₂O) is split in the process, releasing oxygen (O₂) as a byproduct, while carbon dioxide (CO₂) from the air is absorbed by the plant through tiny pores in its leaves called stomata.
The light-dependent reactions of photosynthesis occur in the thylakoid membranes of the chloroplasts, where light energy is converted into chemical energy in the form of molecules like ATP and NADPH. These energy-rich molecules are then used in the light-independent reactions (also known as the Calvin cycle) to produce glucose, which serves as the plant’s main source of energy.
Without sunlight, plants would not be able to produce their own food, as they rely entirely on this solar energy conversion. This is why plants are often referred to as primary producers in ecosystems, forming the foundation of food chains by converting solar energy into chemical energy that is consumed by herbivores and other organisms.
In summary, the sun provides the essential energy for plants to make their food, and this energy is transformed into a form that plants can use to survive and grow.
